fosforolyysin

Fosforolyysi is a biochemical process that involves the cleavage of a molecule by the addition of inorganic phosphate. This type of reaction is distinct from hydrolysis, which involves the addition of water. In fosforolyysi, a phosphate ion attacks a bond in the substrate, breaking it and forming a phosphorylated product and a new molecule. This process is often catalyzed by enzymes called phosphorylases.

A well-known example of fosforolyysi occurs in the breakdown of glycogen, a storage form of glucose in animals. Glycogen phosphorylase catalyzes the release of glucose-1-phosphate from the glycogen chain by adding a phosphate group. This phosphorylated glucose can then be further metabolized in other pathways. Similarly, fosforolyysi plays a role in the catabolism of other biomolecules, such as purines, where the enzyme xanthine oxidase can facilitate a fosforolytic cleavage. The energy released during fosforolyysi can sometimes be conserved in the formation of the phosphorylated intermediate, making it an efficient way to break down molecules and prepare them for subsequent metabolic steps. This reaction mechanism is crucial for energy metabolism and the mobilization of stored reserves within cells.